If CP for an ideal gas is 35.4 J/mol/K, which of the following is CV for this gas?
a. 12.5 J/mol/K
b. 20.8 J/mol/K
c. 29.1 J/mol/K
d. 27.1 J/mol/K
e. 43.4 J/mol/K
d
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Four wave functions are given below. I. y(x, t) = 5sin(4x – 20t + 4) II. y(x, t) = 5sin(3x – 12t + 5) III. y(x, t) = 5cos(4x + 24t + 6) IV. y(x, t) = 14cos(2x – 8t + 3) Use this exhibit to answer the following question(s). Rank the wave functions in order of the magnitude of the wave speeds, from least to greatest
a. IV, II, I, III b. IV = II, I, III c. III, I, II, IV d. IV, I, II, III e. III, IV, II, I
Potential Energy: An electron is released from rest at a distance of 9.00 cm from a fixed proton. How fast will the electron be moving when it is 3.00 cm from the proton? (k = 1/4??0 = 8.99 × 109 N ? m2/C2, e = 1.60 × 10-19 C, melectron = 9.11 × 10-31 kg, mproton = 1.67 × 10-27 kg)
A. 75.0 m/s B. 106 m/s C. 130 m/s D. 1.06 × 103 m/s E. 4.64 × 105 m/s
Which of the following is true of spring tides?
A) They occur at noon and midnight every day. B) They occur at first- and third-quarter moons. C) They occur at dawn and dusk every day. D) They occur at new moon and full moon.
Star A is identical to Star B, except that Star A is twice as far from us as Star B. Therefore,
A) both stars have the same luminosity, but the apparent brightness of Star B is twice that of Star A. B) both stars have the same apparent brightness, but the luminosity of Star B is four times that of Star A. C) both stars have the same luminosity, but the apparent brightness of Star A is four times that of Star B. D) both stars have the same luminosity, but the apparent brightness of Star B is four times that of Star A.